Evidence for prolate structure in light Pb isotopes from in-beam {gamma}-ray spectroscopy of {sup 185}Pb

Journal Article · Tue Sep 15 04:00:00 EDT 2009 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.80.031303· OSTI ID:21293797

Pakarinen, J; Grahn, T ^[1]; Andreyev, A N ^[2]; Julin, R; Juutinen, S; Eeckhaudt, S; Greenlees, P T; Jones, P; Kettunen, H; Leino, M; Leppaenen, A -P; Nyman, M; Perkowski, J; Rahkila, P; Saren, J; Scholey, C; Sorri, J; Uusitalo, J; Van de Vel, K; Venhart, M ^[1]

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1. Department of Physics, University of Jyvaeskylae, P. O. Box 35, 40014 Jyvaeskylae (Finland)
2. TRIUMF, 4004 Wesbrook Mall, Vancouver, British Columbia, Canada V6T 2A3 (Canada)

For the first time, excited states in {sup 185}Pb have been observed in in-beam {gamma}-ray spectroscopic measurements using the recoil-decay tagging method. The resulting level scheme reveals a strongly coupled yrast band structure that originates from coupling of the i{sub 13/2} quasineutron to a prolate deformed core. The band is also observed to de-excite via the spherical {alpha}-decaying 13/2{sup +}isomeric state.

• OSTI ID: 21293797
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 80; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
BEAMS
COUPLING
EXCITED STATES
GAMMA RADIATION
GAMMA SPECTROSCOPY
LEAD 185
NEUTRONS
QUASI PARTICLES
RECOILS
SPHERICAL CONFIGURATION
YRAST STATES